Thomas wilson



' Patented nec. 6, 1898.

T WILSON. WELSBAGH OR OTHEB-INGANDESGENT LIGHT.

(Appliezion ma mz. V'1, 1898.)

r/IIIIIIII,

` (No Model.)

NITIED STATES THOMAS TVILSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE PENNSYLVANIA GLOBE GAS LIGHT COMPANY, OF SAME PLACE.,

WELSACH OR OTHER INCANDESCENT LIGHT.

SPECIFICATION formng part of Letters Patent No. 615,658, dated December 6, 1898.

Application filed March '7, 1898. Serial No. 672,926. (No model.)

T0 all whom it may concern:

Be it known that I, THOMAS WILSON, a citizen of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Welsbach or other Incandescent Lights, of which the following is a specification.

One object of the presentinvention is to provide for the control from the ground or sidewalk of the mixture of air and gas supplied to a Velsbach or other incandescent light without having to open the lantern with which such lights when used as street-lamps are commonly provided.

The nature, characteristic features, and scope of the invention will be more fully understood from the following description,taken in connection with the accompanying drawings, forming part thereof, and in which Figure 1 is an elevational view of a streetlamp embodying features of the invention. Fig. 2 is a top or plan view of the notched and perforated wheel applied to the controllingvalve shown in Fig. 1. Fig. 3 is a side elevational view of the same. Fig. 4 is a central sectional View thereof. Fig. 5 is a sectional view illustrating, on a substantially correct scale, the portion of the light that is provided with the wheel shown in Fig. 2. Fig. 6 is a plan view of the under side of the base of the lantern drawn to an enlarged scale, and Fig. 7 is a view of an implement which may be designated a lighting-stick In the drawings, 1 is a lantern of any size and shape mounted on a lamp-support 2 and provided within its interior with a Welsbach or other incandescent light 3, having a controlling-valve 4. As shown, the controllingvalve 4 is arranged to operate upon the supply of gas, although a controlling-valve might be employed and arranged for Operating upon the supply of air. The controlling-valve 4 is intended for use in adjusting the supply of gas in accordance with the pressure in the gas-mains, and means are usually provided for turning on and off the gas when the lamp is lighted and extinguished. An example of such means is illustrated at 5.

6 is a notched and perfcrated wheel applied to the controlling-valve, for example, by way of its spindle and constructed for operation by means such as an implement shown in Fig. 7 and herein designated a lightingstick The notches and perforations 7 are arranged for the reception of the end a of the lighting-stick, as will appear by reference to the drawings. The base of the lantern, Fig. 6, is provided with an opening 8.

9 is a ring or frame pivoted, as at 10, so as to turn parallel with the base of the lantern.

11 is a perforated cover for the ring, and 12 is a stop for limiting its range of motion. The ring or frame 9 is provided with a lug 13, extending beyond the base of the lantern, and with a bridge 14,to which the perforated cover 11 may be attached. As shown, the ring or frame 9 is pivoted by means of ears fitted to the shank of the headed pivot 10 and h'eld to place by a split pin 15. The opening 8 may be covered and uncovered by pushing the lug 13 by means of the end a of a lightingstick or the like, and the perforated cover 11 serves to exclude insects, drafts, &c., from the lantern.

To adj ust the light, the attendant may stand on the sidewalk or ground and with his lighting-stick or similar implement operate upon the lug 13 so as to uncover the opening 8, through which the lighting-stick is inserted. The end a of the lighting-stick is caused to operate upon the notches or perforations of the wheel 6, and the body Z) of ,the lightingstick resting upon a support, as the walls of the opening 8, serves to guide and support it during the operation. In this way the controlling-valve may be readily adjusted from the ground or sidewalk without opening the sides of the lantern, which would permit such drafts of Aair to enter as might tend to destroy the mantle or incandescent.

It will be obvious to those skilled in the art to which the invention appertains that modifications may be made in details without departing from the spirit thereof. Hence the invvention is not limited to the precise construction and arrangement of parts hereinabove set forth, andillustrated in the accompanying drawin'gs; but,

Having thus described the nature and objects of the invention, what is claimed as new, and'desired to be secured by Letters Patent, 1s-

1. Means for controlling the mixture of air IOO and gas supplied to a Telsbaoh or other incandescent street-lamp ooinprising a peripherally notched and perforated wheel applied horizontally to the controlling-Valve of Ithe lamp and constructed for operation by means of a lighting-stick or the like, substantially as desoribed.

2. In combination a street-lamp having a lantern containing a Welsbaeh or other incandescent light, a notohed and perforated wheel applied to the controlling-valve of the light and oonstruoted foroperation by a lighting-stiok or the like, and an opening in the base of the lantern arranged for the passage of the stick and oonstrncted to constitute a bearing for the same, substantially as desoribed.

The combination ofa lantern eonstrnoted with a base having an opening` therein, a ring 'or frame provided With a bridge and with a lug; and pivoted to the base of the lantern, a perforated cover attaehed to said bridge, and a stop, substantially as desoribed.

4. The combination of a lantern-base pro- Vded With an opening and With a headed 25 In testimony whereof I have hereunto 30 signed my name.

THOMAS WILSON.

In presenee of-- K. M. GILLIGAN, W. S. JACKSON. 

